x86/vsmp: Ignore IOAPIC IRQ affinity if possible

Browse source

vSMP can route interrupts more optimally based on internal
knowledge the OS does not have. In order to support this
optimization, all CPUs must be able to handle all possible
IOAPIC interrupts.

Fix this by setting the vector allocation domain for all CPUs
and by enabling this feature in vSMP.

Signed-off-by: Ravikiran Thirumalai <kiran.thirumalai@gmail.com>
Signed-off-by: Shai Fultheim <shai@scalemp.com>
[ Rebased, simplified, and reworded the commit message. ]
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

This commit is contained in:

Ravikiran Thirumalai 2012-06-03 01:11:35 +03:00 • committed by Ingo Molnar

parent 7db971b235

commit 110c1e1f1b

1 changed files with 23 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

27

arch/x86/kernel/vsmp_64.c

View file